598691 has 2 divisors, whose sum is σ = 598692. Its totient is φ = 598690.

The previous prime is 598687. The next prime is 598711. The reversal of 598691 is 196895.

598691 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 598691 - 2² = 598687 is a prime.

It is a Chen prime.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is not a weakly prime, because it can be changed into another prime (598651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299345 + 299346.

It is an arithmetic number, because the mean of its divisors is an integer number (299346).

2⁵⁹⁸⁶⁹¹ is an apocalyptic number.

598691 is a deficient number, since it is larger than the sum of its proper divisors (1).

598691 is an equidigital number, since it uses as much as digits as its factorization.

598691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 598691 is about 773.7512520184. The cubic root of 598691 is about 84.2818855732.

The spelling of 598691 in words is "five hundred ninety-eight thousand, six hundred ninety-one".